How well do you track your Search Engine Referrals?

Would like to compile your answers.

[dataguy]

I am working on a new report for one of my web sites and it has brought up an issue that I've been talking over with some friends. We'd be interested in having as many people from this forum answer this question as possible:

If your web site took a penalty from a major search engine (i.e. Google) how many hours or days would it be until you would become aware of the issue because your tracking software let you know about the problem?

Thanks for your answers.

[Iguana]

I have had two sites appear/disappear in various Google updates. I spotted them the same day through my Adsense stats and the use of channels within them. They are the only stats I really check every day.